This crossword No. 9480 clues and answers were published on Tue 19 Sep 2000 and the puzzle can be visited by following The Guardian Quick Crossword No. 9480 link.
All Across Clues and Answers:
1-across – Joint – wine : HOCK
3-across – Supposedly lucky animal : BLACKCAT
9-across – Mixture of metals : AMALGAM
10-across – Film : MOVIE
11-across – Trembling poplar : ASPEN
12-across – Take for granted : ASSUME
14-across – Underhand : HOLEANDCORNER
17-across – Effect as of collision : IMPACT
19-across – Divine : DOWSE
22-across – Straighten in relation to others : ALIGN
23-across – Mistake in book, etc : ERRATUM
24-across – Lawfulness : LEGALITY
25-across – Small bird : WREN
All Down Clues and Answers:
1-down – Major problem : HEADACHE
2-down – Munch loudly – the winner! : CHAMP
4-down – London banking centre – All _____ to a china orange : LOMBARDSTREET
5-down – Existentialist writer : CAMUS
6-down – Troglodyte : CAVEMAN
7-down – Affectedly cute : TWEE
8-down – Business for meeting : AGENDA
13-down – Mythical nature hero – pedestrians may cross with him! : GREENMAN
15-down – Supposedly suicidal rodent : LEMMING
16-down – Filth : ORDURE
18-down – Cancel : ANNUL
20-down – Basic liquid : WATER
21-down – Post : MAIL
This crossword has in total 26 where 13 are across and 13 are down.